公开(公告)号：US11817557B2

公开(公告)日：2023-11-14

申请号：US16979007

申请日：2019-07-26

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Min Jung Kim ,  Jae Won Lee

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  C08F283/04

CPC classification number: H01M10/0567 ,  C08F283/045 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  H01M2300/0025 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte includes a lithium salt having a concentration of 1.6 M to 5 M, an oligomer mixture which includes a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2, and an organic solvent.

公开(公告)号：US11777161B2

公开(公告)日：2023-10-03

申请号：US16770777

申请日：2019-03-08

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jeong Woo Oh

IPC: H01M50/129 ,  H01M50/121 ,  H01M50/105 ,  H01M50/119 ,  C08G64/02 ,  C08L23/02 ,  C08L67/02 ,  C08L77/06 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M50/121 ,  C08G64/0208 ,  C08L23/02 ,  C08L67/02 ,  C08L77/06 ,  H01M10/0525 ,  H01M10/0565 ,  H01M50/105 ,  H01M50/119 ,  H01M50/129 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: The present invention relates to a pouch exterior material which is for a lithium secondary battery and includes an inner layer, an outer resin layer, and a metal layer located between the inner layer and the outer resin layer, wherein the inner layer contains an ethylenically unsaturated group, and a lithium secondary battery including the pouch exterior material.

公开(公告)号：US11721810B2

公开(公告)日：2023-08-08

申请号：US16768352

申请日：2019-03-25

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jung Hoon Lee

IPC: H01M10/0565 ,  H01M4/64 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/13 ,  H01M4/02 ,  H01M10/0562

CPC classification number: H01M4/64 ,  H01M4/13 ,  H01M4/621 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0082

Abstract: The present invention relates to an electrode for a lithium secondary battery, which includes an electrode current collector and an electrode active material layer which is formed on one surface of the electrode current collector and includes an electrode active material and an organic binder containing an ethylenically unsaturated group, and a lithium secondary battery including the same.

公开(公告)号：US11489203B2

公开(公告)日：2022-11-01

申请号：US16771561

申请日：2019-07-04

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chui Haeng Lee ,  Min Jung Kim ,  Gwang Yeon Kim

IPC: H01M10/0568 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/02

Abstract: An electrolyte for a lithium secondary battery, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte includes a lithium salt having a concentration of 1.6 M to 5 M, an oligomer including a unit represented by Formula A, and an organic solvent including a cyclic carbonate-based compound and an acetate-based compound, wherein the cyclic carbonate-based compound is present in an amount of 6 vol % to 19 vol % based on the total volume of the organic solvent.

公开(公告)号：US11894516B2

公开(公告)日：2024-02-06

申请号：US17056317

申请日：2019-09-10

Applicant: LG CHEM, LTD.

Inventor： Kyoung Ho Ahn ,  Jung Hoon Lee ,  Won Kyung Shin ,  Jae Won Lee ,  Sol Ji Park ,  Chul Haeng Lee

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a second lithium salt excluding the LiPF6, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte.

公开(公告)号：US11658299B2

公开(公告)日：2023-05-23

申请号：US16956263

申请日：2019-05-10

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jeong Woo Oh ,  Min Jung Kim

IPC: H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/364 ,  H01M4/386 ,  H01M4/483 ,  H01M4/485 ,  H01M4/505 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0028

Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium battery includes a positive electrode having a lithium-nickel-cobalt-manganese-based electrode active material wherein nickel has a content of 80 mol % or greater, relative to the other transition metals, a negative electrode including a silicon-based negative electrode active material, a separator, and a non-aqueous electrolyte solution including a non-aqueous organic solvent and a lithium salt, the lithium salt being contained in a concentration of 1.8 M to 5 M, and wherein the lithium salt includes LiPF6 and a lithium bis(fluorosulfonyl)imide.

公开(公告)号：US11600863B2

公开(公告)日：2023-03-07

申请号：US16771133

申请日：2019-05-31

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Jae Won Lee ,  Chui Haeng Lee

IPC: H01M10/058 ,  H01M10/0525 ,  H01M10/0565 ,  H05B6/10

Abstract: The present invention provides a method for manufacturing a lithium secondary battery, the method including injecting a composition for a gel polymer electrolyte into a lithium secondary battery case having an electrode assembly including a metal electrode current collector and then sealing the same, placing the lithium secondary battery case inside a fixing member having an electromagnetic field generation means, and heating the metal electrode current collector using the electromagnetic field generation means, to heat-cure the composition for a gel polymer electrolyte.

公开(公告)号：US11342585B2

公开(公告)日：2022-05-24

申请号：US16762064

申请日：2018-11-30

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jung Hoon Lee

IPC: H01M10/0565 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

Abstract: The present invention relates to a gel polymer electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared by polymerizing the same, and a secondary battery including the gel polymer electrolyte, and particularly, to a gel polymer electrolyte composition for a lithium secondary battery, which includes a lithium salt, a non-aqueous organic solvent, an ionic liquid, an oligomer having a specific structure, a flame retardant, and a polymerization initiator, a gel polymer electrolyte formed by polymerizing the gel polymer electrolyte composition in an inert atmosphere, and a lithium secondary battery in which flame retardancy and high-temperature stability are improved by including the gel polymer electrolyte.

公开(公告)号：US11923509B2

公开(公告)日：2024-03-05

申请号：US17054354

申请日：2019-07-26

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Min Jung Kim ,  Jung Hoon Lee

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569

CPC classification number: H01M10/0568 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte includes a lithium salt present in a concentration of 1.6 M to 5 M, an oligomer mixture including a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2, and an organic solvent.

公开(公告)号：US11710852B2

公开(公告)日：2023-07-25

申请号：US16769694

申请日：2019-02-01

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M50/434 ,  H01M50/431 ,  H01M50/497

CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M50/431 ,  H01M50/434 ,  H01M50/497 ,  H01M2300/0082

Abstract: The present invention relates to a solid polymer electrolyte including a porous substrate formed of an inorganic fiber containing an ethylenically unsaturated group, a polymer compound coupled to the inorganic fiber and including a polymer network in which an oligomer containing a (meth)acrylate group is coupled in a three-dimensional structure, and a lithium salt, and to a lithium secondary battery including the same.